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authorSimon Horman <horms+renesas@verge.net.au>2018-11-21 13:09:27 +0100
committerWolfram Sang <wsa@the-dreams.de>2018-11-27 13:29:18 +0100
commitfca34b910ddc556c51294d58287f7c33863dddef (patch)
treeb87338d7ab1a8b8dbb46488875b567e2ee2086db /Documentation/devicetree/bindings/i2c
parentcb944fb973bcd326bc99a5381f5fb109c0b9de95 (diff)
downloadlinux-fca34b910ddc556c51294d58287f7c33863dddef.tar.bz2
i2c: sh_mobile: document support for r8a77990 (R-Car E3)
Document support for the IIC code for the r8a77990 (R-Car E3). It is not considered compatible with existing fallback bindings due to the documented absence of automatic transmission registers. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
index d81b62643655..bc876b71d1e4 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -16,6 +16,7 @@ Required properties:
- "renesas,iic-r8a7795" (R-Car H3)
- "renesas,iic-r8a7796" (R-Car M3-W)
- "renesas,iic-r8a77965" (R-Car M3-N)
+ - "renesas,iic-r8a77990" (R-Car E3)
- "renesas,iic-sh73a0" (SH-Mobile AG5)
- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
compatible device)
@@ -28,7 +29,13 @@ Required properties:
the platform first followed by the generic R-Car
version.
- renesas,rmobile-iic must always follow.
+ When compatible with "renesas,rmobile-iic" it should
+ be the last compatibility string listed.
+
+ The r8a77990 (R-Car E3) controller is not
+ considered compatible with "renesas,rcar-gen3-iic"
+ or "renesas,rmobile-iic" due to the absence of
+ automatic transmission registers.
- reg : address start and address range size of device
- interrupts : interrupt of device